检索结果-南通市图书馆

Advances in structure and function of auxin response factor in plants

Journal of Integrative Plant Biology 2023年第3期65卷 617-632页

作者： yonghui li Shaqila Han Yanhua Qi Key Laboratory of Herbage&Endemic Crop Biology of Ministry of Education Inner Mongolia Key Laboratory of Herbage&Endemic Crop BiotechnologySchool of Life SciencesInner Mongolia UniversityHohhot 010000China State Key Laboratory of Plant Physiology and Biochemistry Collegeof Life SciencesZhejiang UniversityHangzhou 310058China

Auxin is a crucial phytohormone that has various effects on the regulators of plant growth and *** signal transduction is mainly controlled by two gene families:auxin response factor(ARF)and auxin/indole-3-acetic acid(Aux/IAA).ARFs are plant-specific transcription factors that bind directly to auxin response elements in the promoters of auxinresponsive *** proteins contain three conserved regions:a conserved N-terminal B3DNA-binding domain,a variable intermediate middle region domain that functions in activation or repression,and a C-terminal domain including the Phox and Bem1p region for dimerization,similar to theⅢandⅣelements of Aux/IAA,which facilitate protein–protein interaction through homodimerization of ARF proteins or heterodimerization of ARF and Aux/IAA *** the two decades following the identification of the first ARF,23 ARF members have been identified and characterized in *** whole-genome sequencing,22,25,23,25,and 36 ARF genes have been identified in tomato,rice,wheat,sorghum,and maize,respectively,in addition to which the related biofunctions of some ARFs have been *** play crucial roles in regulating the growth and development of roots,leaves,flowers,fruits,seeds,responses to biotic and abiotic stresses,and phytohormone signal *** this review,we summarize the research progress on the structures and functions of ARFs in Arabidopsis,tomato,and cereal crops,to provide clues for future basic research on phytohormone signaling and the molecular design breeding of crops.

关键词： auxin response factor auxin signaling biological function biotic and abiotic stresses plant growth development

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Numerical investigation of complex chemistry performing in Ptcatalyzed oxidative dehydrogenation of ethane fixed-bed reactors

引用

Chinese Journal of Chemical Engineering 2020年第3期28卷 793-807页

作者： Zhongfeng Geng Hao Deng yonghui li Minhua Zhang Key Laboratory for Green Chemical Technology of Ministry of Education.R&D Center for Petrochemical Technology Tianjin UniversityTianjin 300072China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072China

Ethylene is one of the most important basic chemicals in the modern chemical *** or catalytic cracking of hydrocarbons is the main industrial technologies nowadays,which suffer from equilibriumlimitation and rapid coke *** oxidative dehydrogenation of ethane(ODHE)is considered to be a promising alternative process since it overcomes equilibrium-limitations,avoids catalyst deactivation by coke formation,and decreases the number of side *** this study,particle-resolved 2 D CFD simulations of fixed-beds filled with eggshell catalysts coupled with micro-kinetics of Pt-catalyzed ODHE were performed to understand the effect of operation conditions and catalyst properties on ethylene *** catalyst bed was created by discrete element method(DEM)and the central longitudinal section of the reactor tube was defined as the 2 D simulation *** of the homogeneous and catalytic heterogeneous chemical reactions were described by detailed micro-kinetics within the particle-resolved CFD *** first,the established model of monolith reactors was verified by comparing the simulated results with experimental results reported in ***,the effects of operation conditions and catalyst concentration on the ethylene selectivity in randomly packed beds were *** specific variation of certain operation conditions including inlet flow rate,inlet temperature,pressure,inlet C2 H6/O2 ratio and N2 dilution ratio can effectively increase ethylene *** the reduction of ratio of catalytic active area to geometric area Fcat/georepresenting catalyst properties from 140 to 30 increases the selectivity from 42.2%to 59.3%.This research can provide reference for the industrialization of ODHE process in the future.

关键词： Ethane Ethylene Oxidative dehydrogenation Selectivity CFD Fixed-bed

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Multi-objective regulation in autohydrolysis process of corn stover by liquid hot water pretreatment

引用

Chinese Journal of Chemical Engineering 2017年第4期25卷 499-506页

作者： Huisheng Lü Xingfang Shi yonghui li Fanmei Meng Shuangyan liu li Yan Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University R&D Center for Petrochemical TechnologyTianjin UniversityTianjin 300072China

Increasing reducing sugars(xylose and glucose) yield for bioethanol from corn stover depends strongly on optimization of pretreatment conditions. The optimum reaction conditions of two-stage liquid hot water(LHW) pretreatment based on total sugars yield were investigated. Under optimal conditions, the recovery of glucose of corn stover after two-stage LHW pretreatment and 72 h enzymatic digestion, reached 89.55%. In addition, acetic acid-rich spent liquor pretreatment and one-stage LHW pretreatment have been carried out to make comparisons with two-stage LHW treatment. Glucose yield 89.55% is superior to the recovery 83.38% using acetic acidrich spent liquor pretreatment or 80.58% using one-stage LHW pretreatment. The production of total sugars was increased by 7.8% when compared with one-stage pretreatment. Moreover, the structural features of the treated corn stover solid residues were also investigated by XRD and SEM technology in order to clarify the effects of the reaction on corn stover. The results indicated that the two-stage LHW pretreatment was an effective pretreatment method of corn stover to get most massive resource utilization, and it could be successfully applied to corn stover.

关键词： pretreatment liquor digestion hydrolysis acetic phenols spent cellulose biomass untreated

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

First-principles investigation of the concentration effect on equilibrium fractionation of Ca isotopes in forsterite

引用

Acta Geochimica 2019年第4期38卷 497-507页

作者： Yahui Song yonghui li Wenzhong Wang Zhongqing Wu Laboratory of Seismology and Physics of Earth’s Interior School of Earth and Space Sciences University of Science and Technology of China

Previous theoretical studies have found that the concentration variations within a certain range have a prominent effect on inter-mineral equilibrium isotope fractionation(10^3 lna).Based on the density functional theory,we investigated how the average Ca–O bond length and the reduced partition function ratios(10^3 lnb)and103lna of 44 Ca/40 Ca in forsterite(Fo)are affected by its Ca *** results show that Ca–O bond length in forsterite ranges from 2.327 to 2.267 A with the Ca/(Ca+Mg)varying between a narrow range limited by an upper limit of 1/8 and a lower limit of 1/***,outside this narrow range,i.e.,Ca/(Ca+Mg)is lower than1/64 or higher than 1/8,Ca–O bond length becomes insensitive to Ca concentration and maintains to be a *** the 10^3 lnb is negatively correlated with Ca–O bond length,the 10^3lnb significantly increases with decreasing Ca/(Ca+Mg)when 1/64linopyroxene[calcite & diopside[dolomite[*** pyroxenes are enriched in heavier Ca isotope compared to *** 10^3lna between forsterite with a Ca/(Ca+Mg)of 1/64 and clinopyroxene(Ca/Mg=1/1,i.e.,diopside)is up to^0.64%at 1200 *** large 103lnaFodiopsiderelative to the current analytical precision for Ca isotope measurements suggests that the dependence of10^3 lnaFo-diopsideon temperature can be used as a thermometer,similar to the one based on the 103lna of 44 Ca/40 Ca between orthopyroxene and *** two Ca isotope thermometers both have a precision approximate to that of elemental thermometers and provide independent constraints on temperature.

关键词： Ca isotope First-principles calculations Forsterite Concentration effect Equilibrium isotope fractionation

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Improvement of whole wheat dough and bread properties by emulsifiers

引用

Grain & Oil Science and Technology 2022年第2期5卷 59-69页

作者： Lauren Tebben Gengjun Chen Michael Tilley yonghui li Department of Grain Science and Industry Kansas State UniversityManhattanKS 66506USA Center for Grain and Animal Health Research Agricultural Research Service of United States Department of Agriculture(USDA)ManhattanKS 66502USA

Whole wheat bread is widely available worldwide,but it is always associated with less desirable dough processibility,small loaf volume,firm and gritty texture,and other distinctive attributes compared to white *** are commonly used to improve dough handling and baking quality during bread *** present study,five emulsifiers(diacetyl tartaric acid esters of mono-and diglycerides(DATEM),polysorbate 80,sodium stearoyl lactylate(SSL),soy lecithin,and sucrose esters)were added during dough preparation of the whole wheat flour at 0.2%,0.5%,and 1.0%(flour weight basis).Dough rheological behavior and bread quality attributes,such as specific loaf volume and hardness,were *** results showed that DATEM,sucrose esters,and SSL increased the resistance to extension of the dough,whereas soy lecithin and polysorbate 80 increased the *** lecithin and polysorbate 80 were the only emulsifiers that significantly increased loaf volume compared to the *** higher levels(1.0%)of sucrose esters,polysorbate 80,and SSL increased the formation of amylose-lipid complex and mitigate the crumb staling during *** results suggested that the emulsifiers could be applied to contribute to optimum functional quality of whole wheat bread.

关键词： Whole wheat flour Dough rheology Bread Emulsifiers Staling

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Overview on pulse proteins for future foods:ingredient development and novel applications

引用

Journal of Future Foods 2023年第4期3卷 340-356页

作者： Bipin Rajpurohit yonghui li Department of Grain Science and Industry Kansas State UniversityManhattan 66506USA

We are facing the challenge of climate change and food insecurity for a growing *** current mode of animal protein production via animal agriculture is resource-intensive and ***,there is a need to find alternative sources of food protein that are environmentally ***-based proteins,specifically pulse-based proteins,provide a promising solution to the *** review aims to provide an overview and perspective on extraction,functionality,digestibility,sensory,and new food applications of pulse *** main methods,namely wet fractionation and dry fractionation are used to extract pulse-based *** compared to dry fractionation,wet fractionation yields high purity protein,but the process alters the structure and function of the *** biochemical and physical techniques can be used to assist wet extraction process to increase protein yield and/or reduce extraction *** main techno-functional properties of plant-based proteins determining their practical applicability are solubility,water/oil holding capacity(WHC/OHC),gelation,emulsification,foaming,and rheological ***,pulse proteins are deficient in one or more essential amino *** to overcome the deficiency are *** and non-volatile compounds inherent to pulses or developed during processing are mostly responsible for the off flavors in the extracted *** to improve the pulse protein flavor and remove or modify off-flavors are ***-based protein ingredients have applications in bakery products,pasta,meat analogues,dairy alternatives,and *** these applications,there is a need to explore novel applications of pulse proteins in infant and children’s formula,beverages,breakfast cereals,flavor development,and extruded snack products,develop new applications such as personalized and precision nutrition and bioactive peptides,and employ innovative technologies such as

关键词： Plant-based protein Off-flavors Pretreatment techniques Protein functionality Protein extraction

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Adsorption equilibrium for Z-ligustilide on C18-bonded silica from supercritical carbon dioxide

引用

Chinese Journal of Chemical Engineering 2016年第12期24卷 1680-1686页

作者： Huisheng Lü Shuangyan liu yonghui li Fanmei Meng Dawei Yao Xufei Mo Key Laboratory for Green Chemical Technology of Ministry of Education Tianjin University R&D Center for Petrochemical Technology

Adsorption equilibrium is of great importance for the preparative supercritical fluid chromatography(pre-SFC) in defining supercritical adsorption behavior and the industrial *** paper presents adsorption isotherms of Z-ligustilide from supercritical carbon dioxide(SC-CO_2) on C18-bonded *** behavior was studied at 305.15 K,313.15 K and 323.15 K with SC-CO_2 density varying from 0.687 g·cm^(-3) to0.863 g·cm^(-3) with the elution by characteristic points(ECP) *** adsorption amount of Z-ligustilide from SC-CO_2 on C18-bonded silica decreased with the increasing density of the mobile phase as well as the increasing *** equilibrium data were fitted by Langmuir and Freundlich isotherm models,and the Langmuir isotherm model performed better for describing the whole adsorption process on the *** monolayer saturation adsorption capacity of Z-ligustilide is in the range of 3.0 × 10^(-4) mg·cm^(-3) to5.5 × 10^(-4) mg·cm^(-3) with an average value of 4.0 × 10^(-4) mg·cm^(-3).

关键词： Z-ligustilide C18-bonded silica Pre-SFC Adsorption equilibrium Isotherm model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Optimization of hydrothermal pretreatment for co-utilization of xylose and glucose of cassava anaerobic residue for producing ethanol

引用

Chinese Journal of Chemical Engineering 2019年第4期27卷 920-927页

作者： Huisheng Lü Jinyi Zhou Jiatao liu Chunliu Lü Feng lian yonghui li Key Laboratory for Green Chemical Technology of Ministry of Education R&D Center for Petrochemical Technology Tianjin University Tianjin 300072 China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China

The development of a process that could recover biofuel from industrial cellulose waste can not only reduce the negative environmental impacts by using fossil fuels, but also bring a green idea for the waste’s disposing. In this study, hydrothermal pretreatment was optimized for cassava anaerobic residue, a cellulosic waste from cassava ethanol industry, to co-utilize xylose and glucose for producing bioethanol. The effect of the main pretreatment conditions, namely, temperature, solid content and time, was explored for the highest recovery of xylose in prehydrolysate and glucose in enzymatic hydrolysate. The single factor experiment results showed that the conditions for maximum xylose recovery in prehydrolysate and glucose recovery in enzymatic hydrolysate were 60℃, 75 min, 10% solids and 160℃, 75 min, 10% solids, respectively. Whereafter, response surface methodology(RSM) was applied to further optimize the pretreatment conditions for the maximum theoretical ethanol production through utilizing both xylose and glucose. A treatment at 163℃, for 59 min and with 9.5%solids was found optimal, with the highest ethanol production of 20.2 mg·g^-1 raw material. Furthermore, in order to assess the impacts of the pretreatment on cassava anaerobic residue, the changes in crystallinity and morphology for untreated and pretreated solids were investigated.

关键词： Waste treatment Biofuel Hydrothermal Cassava anaerobic residue Co-utilization Response surface methodology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Adsorption equilibria of paeoniflorin and albiflorin on cyano-silica column from supercritical carbon dioxide/ethanol

引用

Chinese Journal of Chemical Engineering 2019年第4期27卷 827-834页

作者： Huisheng Lü Zhi Wang Zhongfeng Geng yonghui li Shuangyan liu Jiatao liu Key Laboratory for Green Chemical Technology of Ministry of Education R&D Center for Petrochemical Technology Tianjin University Tianjin 300072 China Collaborative Innovation Center of Chemical Science and Engineering Tianjin 300072 China

Adsorption equilibria of paeoniflorin and albiflorin on a cyano-silica column(CN column) from the solution of supercritical carbon dioxide(scCO2) modified with ethanol were studied. The adsorption capacity at 308.15 K,313.15 K, 318.15 K and 323.15 K under pressures corresponding to carbon dioxide/ethanol densities from0.347 g·cm^-3 to 0.662 g·cm^-3 were determined using the elution by characteristic point method(ECP). The effects of temperature and pressure on the solute loading were investigated. The results showed that the lower the temperature, the higher the adsorption capacity. With the decrease of density of scCO2, the adsorption capacity strengthens. The maximum adsorption capacity of paeoniflorin(albiflorin) on the CN column was15.24 mg·ml^-1(31.14 mg·ml^-1) in the range of 0–1.84 mg·ml^-1(0–1.67 mg·ml^-1) of paeoniflorin(albiflorin)standard solution. The adsorption capacity of albiflorin was twice as much as that of paeoniflorin under the same conditions. Adsorption data of paeoniflorin and albiflorin could be well described by the Langmuir model and Freundlich model. Compared with the two model fitting results, the adsorption of paeoniflorin and albiflorin belonged to the monolayer adsorption under conditions of 308.15–323.15 K and 10–17 MPa.

关键词： Adsorption Supercritical carbon dioxide Paeoniflorin Albiflorin Isotherm model

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Adaptive delay-energy balanced partial offloading strategy in Mobile Edge Computing networks

引用

Digital Communications and Networks 2023年第6期9卷 1310-1318页

作者： Shumei liu Yao Yu Lei Guo Phee Lep Yeoh Branka Vucetic yonghui li School of Computer Science and Engineering Northeastern UniversityShenyang110819China Key Laboratory of Intelligent Computing in Medical Image Ministry of EducationNortheastern UniversityShenyang110819China School of Communication and Information Engineering Chongqing University of Posts and TelecommunicationsChongqing400065China School of Electrical and Information Engineering University of SydneySydneyNSW2006Australia

Mobile Edge Computing(MEC)-based computation offloading is a promising application paradigm for serving large numbers of users with various delay and energy *** this paper,we propose a flexible MECbased requirement-adaptive partial offloading model to accommodate each user's specific preference regarding delay and energy *** address the dimensional differences between time and energy,we introduce two normalized parameters and then derive the computational overhead of processing *** from existing works,this paper considers practical variations in the user request patterns,and exploits a flexible partial offloading mode to minimize computation overheads subject to tolerable delay,task workload and power *** the resulting problem is non-convex,we decouple it into two convex subproblems and present an iterative algorithm to obtain a feasible offloading *** experiments show that our proposed scheme achieves a significant improvement in computation overheads compared with existing schemes.

关键词： Mobile edge computing(MEC) Delay Energy consumption Dynamic balance Partial computation offloading

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：